The Sun appears at an angle of 58.0° above the horizontal as viewed by a dolphin swimming underwater. What angle does the sunlight striking the water actually make with the horizon? (Assume nwater = 1.333. Enter an answer between 0° and 90°.)
using snell's law:
n1sin(i) = n2sin(r)
air refractive index n2=1.000293 ,n1= nwater = 1.333 , r = 58.0°
sin(i) = (n2sin(r))/n1 = ((1.00293 x sin( 58.0°))/(1.333) =0.636
i = 39.5 degrees
The Sun appears at an angle of 58.0° above the horizontal as viewed by a dolphin...
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